Cosmarium

Cosmarium botrytis, copyright Atriplex82.

Belongs within: Desmidiaceae.

Cosmarium is a genus of unicellular desmids bearing two rounded semicells lacking spines.

<==Cosmarium
    |--C. amoenumG64
    |--C. amplumP08
    |--C. aphanichondrumP08
    |--C. attenuatumG64
    |--C. bacciferumP08
    |--C. binerveP08
    |--C. bioculatumG64
    |--C. biretumG64
    |--C. boeckiiP08
    |    |--C. b. var. boeckiiP08
    |    |--C. b. var. imperfectum Playfair 1908P08
    |    `--C. b. var. trifoliatum Playfair 1908P08
    |--C. botrytisMK00
    |--C. brebissoniiG64
    |--C. broomeiiG64
    |--C. caelatumG64
    |--C. commissuraleG64
    |--C. connatumSG05
    |--C. conspersumG64
    |--C. crenatumG64
    |--C. cristatumG64
    |--C. cucumisG64
    |--C. cucurbitaG64
    |--C. curtumG64
    |--C. cylindricumG64
    |--C. didymochondrumP08
    |--C. difficileP08
    |--C. difficillimum Playfair 1908P08
    |--C. doliformeP08
    |--C. fluviatile Playfair 1907P08
    |--C. genuosumP08
    |--C. glyptodermumP08
    |--C. granatumG64
    |--C. impressulumRA05
    |--C. magnificumP08
    |--C. margaritiferumG64
    |--C. meneghiniiG64
    |--C. mesoleium (Rac.) Playfair 1908 [=C. punctulatum ssp. mesoleium]P08
    |    |  i. s.: C. m. f. adulta Playfair 1908P08
    |    |         C. m. f. asperrima Playfair 1908P08
    |    |         C. m. f. circularisP08 [=C. circulareSG05]
    |    |         C. m. f. malagensisP08
    |    |         C. m. f. rotundataP08
    |    |--C. m. var. mesoleiumP08
    |    |--C. m. var. arcuatum Playfair 1908P08
    |    `--C. m. var. rhomboideumP08
    |         |--C. m. var. r. f. rhomboideumP08
    |         `--C. m. var. r. f. australis Playfair 1908P08
    |--C. moniliformeG64
    |--C. obtusatumSG05
    |--C. ochthodesWM14
    |--C. orbiculatumG64
    |--C. ornatumG64
    |--C. ovaleG64
    |--C. phaseolusG64
    |--C. pseudoprotuberansP08
    |--C. punctulatumP08
    |--C. pyramidatumG64
    |--C. quadratumG64
    |--C. ralfsiiG64
    |--C. rectangulare [incl. C. gothlandicum]P08
    |    |--C. r. var. rectangulareP08
    |    |--C. r. var. boldtii Playfair 1908P08
    |    |--C. r. var. quadrigeminatum Playfair 1908P08
    |    `--C. r. var. nodulatum Playfair 1908P08
    |--C. repandumP08
    |--C. stenonotumP08
    |    |--C. s. var. stenonotumP08
    |    `--C. s. var. spirale Playfair 1908P08
    |--C. subbinaleP08
    |    |--C. s. var. subbinaleP08
    |    `--C. s. var. euastroideum Playfair 1908P08
    |--C. submammiliferumP08
    |    |--C. s. var. submammiliferumP08
    |    `--C. s. β quadrigemme (Playfair) Playfair 1908 [=C. quadrigemme Playfair 1907]P08
    |--C. subrectangulareP08
    |--C. tetrophthalmumP08
    |--C. tholiformeP08
    |--C. thwaitesiiG64
    |--C. tinctumG64
    |--C. turgidumG64
    |--C. uliginosum Playfair 1908P08
    |--C. umbonulatumP08
    |--C. undulatumG64
    |--C. variolatumP08
    |    |--C. v. var. variolatumP08
    |    `--C. v. β extensumP08
    `--C. zonatumP08

*Type species of generic name indicated

References

[G64] Gray, J. E. 1864. Handbook of British Water-weeds or Algae. R. Hardwicke: London.

[MK00] McCourt, R. M., K. G. Karol, J. Bell, K. M. Helm-Bychowski, A. Grajewska, M. F. Wojciechowski & R. W. Hoshaw. 2000. Phylogeny of the conjugating green algae (Zygnemophyceae) based on rbcL sequences. Journal of Phycology 36: 747–758.

[P08] Playfair, G. I. 1908. Some Sydney desmids. Proceedings of the Linnean Society of New South Wales 33: 603–628, pls 11–13.

[RA05] Rath, J., & S. P. Adhikary. 2005. A check list of algae from Chilika Lake, Orissa. Bulletin of the Botanical Survey of India 47: 101–114.

[SG05] Sau, A., & R. K. Gupta. 2005. Algal flora of Indian Botanic Garden, Howrah, West Bengal. Bulletin of the Botanical Survey of India 47: 63–86.

[WM14] Wickett, N. H., S. Mirarab, N. Nguyen, T. Warnow, E. Carpenter, N. Matasci, S. Ayyampalayam, M. S. Barker, J. G. Burleigh, M. A. Gitzendanner, B. R. Ruhfel, E. Wafula, J. P. Der, S. W. Graham, S. Mathews, M. Melkonian, D. E. Soltis, P. S. Soltis, N. W. Miles, C. J. Rothfels, L. Pokorny, A. J. Shaw, L. DeGeronimo, D. W. Stevenson, B. Surek, J. C. Villarreal, B. Roure, H. Philippe, C. W. dePamphilis, T. Chen, M. K. Deyholos, R. S. Baucom, T. M. Kutchan, M. M. Augustin, J. Wang, Y. Zhang, Z. Tian, Z. Yan, X. Wu, X. Sun, G. K.-S. Wong & J. Leebens-Mack. 2014. Phylotranscriptomic analysis of the origin and early diversification of land plants. Proceedings of the National Academy of Sciences of the USA 111 (45): E4859–E4868.

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